US PATENT SUBCLASS 29 / 896.62
.~.~ Filter

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
896.6  DF  .~ Multiperforated metal article making {2}
896.62.~.~ Filter

DEFINITION

Classification: 29/896.62

Filter:

(under subclass 896.6) Process of making a perforated article which will be used to separate particles from material flowing through the article.

SEE OR SEARCH THIS CLASS, SUBCLASS:

902, for a cross-reference art collection including a method for making a filter.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation,

498, for a filter having a perforated or grooved plate.